solitary vs solitudinarian

solitary and solitudinarian both are nouns.

Word	Noun	Adjective	Verb	Adverb
solitary	Yes	Yes	No	No
solitudinarian	Yes	No	No	No

As nouns, solitary and solitudinarian are synonyms defined as:

Other synonyms of solitary include hermit, recluse, troglodyte.

solitary (noun)	solitudinarian (noun)
one who lives in solitude	one who lives in solitude
confinement of a prisoner in isolation from other prisoners

solitary (adjective)	solitudinarian (adjective)
being the only one; single and isolated from others
lacking companions or companionship
of plants and animals; not growing or living in groups or colonies
devoid of creatures
characterized by or preferring solitude